World Chess Championship 2013, round 6: Carlsen wins the second game in a row when Anand blunders again in a drawn ending

In my continuing coverage of the World Chess Championship between Anand and Carlsen, today I cover round six, in which Carlsen won the second game in a row.

Game and notes below:

Summary

Psychology already at move 4

As White, Anand played e4 again, as in round 4, and Carlsen again used the Berlin Defense. Anand deviated by refusing to go into the Berlin ending that had gone badly for him in round 4, and chose with d3 to transpose into a line of the Closed Ruy Lopez that is considered to be not so challenging for Black because of the lack of a White d4.

Personally, I think this was a psychological error on Anand’s part, playing like Carlsen, avoiding the main aggressive opening lines. As we have seen in the match so far (and in Carlsen’s whole career), Carlsen is good at holding his own when the opening is harmless or even worse for him. By giving up the fight for an opening advantage, I think Anand gave up one of his advantages, that of superior opening preparation.

Accumulating small weaknesses

Anand did not play the middlegame well. As in round 4, he used time-consuming Knight maneuvers that ended up simply allowing Carlsen to complete piece development with a harmonious setup. The result was a simplified position that looked like it should be a draw.

To my surprise, however, Anand kept on voluntarily accepting small weaknesses in his positions, first in the form of doubled e Pawns and then even isolated doubled e Pawns, when the most “natural” moves blocking up the position seemed safe and effective to hold for a draw.

Blundering a Pawn away

On the 38th move, Anand mysteriously blundered away a Pawn for no good reason whatsoever, in a position that seemed like it should be an easy blocked-up draw. This was a total shock to me. It made no sense whatsoever to me.

Still a draw, but Carlsen set a trap

In the Rook and Pawn ending, it looked like the ending should still be a draw, but Carlsen kept playing and making progress on the King side. In fact, he abandoned his Queen side in order to attempt to win on the King side. It was a great winning try.

I will confess that while playing over the score at this point in the ending, I lost all confidence in my ability to really understand what was going on without computer aid. I turned on the chess engine to analyze the ending, and it’s really quite tricky. Even at a critical moment when the ending was still drawable by White, there is a large number of forcing lines that must be examined. In any case, what happened was that Anand fell into a trap in which Carlsen had a fine deflecting and clearance sacrifice that forced a win. Wow.

The state of the match

Anand is in terrible, terrible trouble. It’s just that he has lost two games in a row, and almost certainly will not be able to make up the deficit in the remaining six games in the match. It’s the way he’s been losing: playing poorly in the middlegame in both rounds 5 and 6, then finally cracking and falling into difficult endings in which he failed to find the draws. He did in each game defend actively and resourcefully in the endings, with plans that should have worked, but each time he eventually blundered.

I hope Anand comes back to play well, regardless of the final outcome of the match, but right now, it looks like Carlsen is the one who has not made any blunders yet of the magnitude of Anand’s.

The game

Move comment:
Event: FWCM 2013
Site: Chennai
Round: 6
Date: 2013.11.16
White: Anand, Viswanathan
Black: Carlsen, Magnus
Result: 0-1

Side to move: white

Last move: 1.  variations:
Next move: 1. e4  variations:

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6
 
Carlsen is confident about using the Berlin Defense again.
 
4. d3
 
Anand chooses to avoid going into the Berlin endgame that he had trouble with in round 4. He chooses to fight in the middlegame instead. Note that White gets no opening advantage with this quiet continuation, so Anand is signaling that he wants to demonstrate that he is better than Carlsen in a complex middlegame, the way Carlsen earlier played innocuous openings as White in order to avoid special preparation.
 
4... Bc5 5. c3 O-O 6. O-O Re8 7. Re1 a6 8. Ba4 b5 9. Bb3 d6 10. Bg5
 
[10. Nbd2 Delaying Bishop development and starting the Knight for f1, and then e3 or g3, is also possible.]
 
10... Be6!?
 
A surprise to me, and provocative because it allows White to capture.
 
11. Nbd2?!
 
Hmm, refusing to take on e6 seems to justify Black's Be6. Anand must have believed that his next move gave him better chances to play for a win, but I do not understand why. [11. Be6 Giving Black the doubled e Pawns and blocking up Black's Rook on e8 looks most challenging. 11... fe6 (11... Re6? 12. d4) 12. d4 Gaining space in the center looks like it gives White a clear advantage, so it confuses me that Anand did not choose it.]
 
11... h6 12. Bh4
 
A fairly thematic Closed Ruy Lopez middlegame has arisen that can be considered equal. Now the question is, who is better at maneuvering to create winning chances?
 
12... Bb3 13. ab3!?
 
Provocative. White accepts a long-term positional weakness of doubled b Pawns for hope of play on the half-open a file. White also has ideas of advancing to b4 to trying to create a bind on Black's Queen side. [13. Nb3 Natural, safe, but completely boring.]
 
13... Nb8
 
The beginning of a Breyer-style defensive redeployment of the Knight to d7 and freeing up the c Pawn for a possible advance to c5 to begin Queen side play.
 
14. h3
 
Preparing a King side attack. [14. b4 Aiming at Queen side play looks completely natural and good, but Anand must have thought there were no immediate prospects there.]
 
14... Nbd7 15. Nh2
 
Apparently aiming to maneuver the Knight on g4. Anand seems to like to maneuver Knights, although this backfired badly in round 4 when he moved his Knights aimlessly in the Berlin ending.
 
15... Qe7
 
With the idea of breaking the pin and activating the Queen by moving to e6, covering the d5 and f5 squares.
 
16. Ndf1
 
More Knight maneuvering by Anand. This Knight wants to go to e3 and then f5 or d5.
 
16... Bb6
 
Making way for a c5 Pawn advance that would clamp down on White's b4 and d4 squares.
 
17. Ne3 Qe6 18. b4 a5
 
Neutralizing any plans White may have had to double up pressure on the half-open a file. Black looks completely fine now.
 
19. ba5 Ba5 20. Nhg4 Bb6 21. Bf6
 
Getting rid of his own Bishop that was otherwise locked in.
 
21... Nf6 22. Nf6 Qf6
 
After all this simplification, it looks like Black is fully equal.
 
23. Qg4
 
Hoping to invade on d7, and forcing Black to remove White's powerful Knight on e3.
 
23... Be3
 
Removing White's potentially dangerous Knight.
 
24. fe3
 
So White has voluntarily accepted doubled e Pawns, but for what? In this simplified position, things are not looking promising for Anand. White has a much looser Pawn structure, with the Pawn on d3 being a target, and the the doubled e Pawns are a long-term liability. Black can work toward c5 and c4 prying at White's d3 Pawn. Meanwhile, there is nothing White can really do to make use of the half-open f file. Anand has misplayed the middlegame up to this point. Carlsen has a dream weakness-free position.
 
24... Qe7
 
Preventing Qd7, and adding to pressure against White's e4 Pawn to prevent White from playing d4.
 
25. Rf1 c5
 
Black gets rolling on the Queen side. White cannot stop c4. White's position is beginning to look worse and worse.
 
26. Kh2 c4 27. d4
 
White has now weakened his e4 Pawn.
 
27... Ra1 28. Ra1 Qb7
 
Now threatening to win White's e4 Pawn. [28... ed4? Trying to win the e4 Pawn immediately is premature. 29. ed4 Qe4 30. Qe4 Re4 31. Ra8 Kh7 32. Rb8 And White will regain the Pawn with a draw.]
 
29. Rd1?!
 
Mysterious to me. Was Anand trying to preserve winning chances but in a clearly worse position? [29. d5 Locking up the center at the expense of exposing the e3 Pawn seemed very safe if the goal is to secure a draw.]
 
29... Qc6
 
Protecting the d6 Pawn.
 
30. Qf5?!
 
Consistent with the aggressive hope of using the d file with the Rook, but risky.
 
30... ed4 31. Rd4
 
Forced. Now the game is getting open. White is hoping to get in Rd5.
 
31... Re5 32. Qf3 Qc7
 
Now how can either side make progress? Black's weakest points, the b5 and d6 Pawns, are protected, and White's e4 and e3 Pawns are protected.
 
33. Kh1 Qe7 34. Qg4 Kh7 35. Qf4 g6
 
Nice. Black continues to improve his position, planning to move the King to g7 to protect the f7 Pawn. Also, there are possible ideas of advancing with h5.
 
36. Kh2 Kg7 37. Qf3 Re6
 
The position looks like a draw to me. How can either side make progress?
 
38. Qg3?
 
This move makes no sense whatsoever!! White just drops a Pawn, making a draw just trickier even if technically the simplification should lead to a draw.
 
38... Re4 39. Qd6 Re3 40. Qe7 Re7 41. Rd5 Rb7
 
The game looks like it should be a draw even though White is down a Pawn.
 
42. Rd6 f6
 
To start activating the King.
 
43. h4 Kf7 44. h5!?
 
Sacrificing another Pawn. An interesting attempt to create a clear draw.
 
44... gh5 45. Rd5 Kg6 46. Kg3 Rb6 47. Rc5 f5 48. Kh4 Re6
 
Whoa, Carlsen plays for the win, abandoning the Queen side and going for the kill on the King side.
 
49. Rb5 Re4 50. Kh3?
 
It turns out this is poor, because the King gets stuck on the side of the board, but at this point in the game, I am relying on computer analysis to tell me this retroactively. I certainly did not see the concrete dangers that follow in the actual game. [50. Kg3 Keeps the King active so that it may go to f3 or f2 if needed.]
 
50... Kg5 51. Rb8 h4 52. Rg8 Kh5
 
And White's King is looking unhappy.
 
53. Rf8 Rf4 54. Rc8 Rg4 55. Rf8 Rg3 56. Kh2 Kg5 57. Rg8 Kf4 58. Rc8 Ke3 59. Rc4
 
White has connected b and c Pawns, but Black is already closing in on the King side.
 
59... f4 60. Ra4??
 
The losing blunder. [60. b4 White draws by immediately trying to Queen the b Pawn. 60... h3 Let's see what happens if Black tries the same idea as in the actual game. 61. gh3 Rg6 62. Rc8 f3 63. Re8 Kf2 64. b5 Rg2 65. Kh1 Rg1 66. Kh2 Re1 67. Re1 White can afford to trade Rooks because his b Pawn will Queen just in time to hold the Queen and Pawn ending!! 67... Ke1 68. b6 f2 69. b7 f1Q 70. b8Q]
 
60... h3!
 
A beautiful deflecting and clearance sacrifice to keep White's King trapped while making way for the f Pawn to advance. Again, I have to confess that I had to turn on the chess engine to find the forced continuations that allow Black to Queen the f Pawn.
 
61. gh3 Rg6 62. c4
 
Trying to check from the side. [62. Ra8 White can try to check from behind instead of from the side, but this also does not work. 62... f3 63. Re8 (63. b4 Rg2 64. Kh1 Re2 65. Re8 (65. b5 Re1 66. Kh2 f2 Black Queens.) 65... Kf2 66. Ra8 Re1 67. Kh2 Ke3 68. Re8 Kd2 69. Rd8 Ke2 70. Re8 Kf1 Triangulation.) 63... Kf2 64. Rf8 (64. b4 Rg2 65. Kh1 Rg1 66. Kh2 Re1 67. Ra8 Ke3 68. Re8 Kd2 69. Rd8 Ke2 70. Re8 Kf1 $201 71. Ra8 f2 72. Rf8 Ke2 73. Re8 Kd3 74. Rd8 Kc3 75. Rc8 Kb3 No more checks for White.) (64. Re7 Rg2 65. Kh1 And Black will eventually get the King out of the way to Queen. 65... Rg1 66. Kh2 Re1 67. Rh7 Ke2 68. Re7 And Black's King will go to e3 or e2, and to d2 if needed. 68... Kf1) 64... Rg2 65. Kh1 And Black will Queen shortly, after moving the King out of the way. 65... Kg3 66. b4 (66. Rg8 Black will Queen shortly, after moving the King out of the way of the f Pawn. 66... Kh3 67. Rh8 Kg3 68. Rg8 Kf2 69. Rh8 Kf1) 66... f2 Mate coming.] [62. b4 Pushing the b Pawn is too late. 62... f3 63. Ra8 (63. b5 f2 64. Ra1 Ke2 65. Ra2 Kf3 Oops, no more checks for White because of his own c3 Pawn!) (63. c4 Transposes to the game continuation.) 63... Rg2 64. Kh1 Re2 65. b5 Re1 66. Kh2 f2]
 
62... f3 63. Ra3 Ke2 64. b4 f2 65. Ra2 Kf3 66. Ra3 Kf4
 
No more checks from the side!
 
67. Ra8
 
[67. Ra1 Re6]
 
67... Rg1
 
And Black will Queen, because White's Rook checks from behind will run out. Amazing how White's own b and c Pawns got in the way.